/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016 MediaTek Inc. * Author: PC Chen <pc.chen@mediatek.com> */ #ifndef _VDEC_VPU_IF_H_ #define _VDEC_VPU_IF_H_ #include "mtk_vpu.h" /** * struct vdec_vpu_inst - VPU instance for video codec * @ipi_id : ipi id for each decoder * @vsi : driver structure allocated by VPU side and shared to AP side * for control and info share * @failure : VPU execution result status, 0: success, others: fail * @inst_addr : VPU decoder instance address * @signaled : 1 - Host has received ack message from VPU, 0 - not received * @ctx : context for v4l2 layer integration * @dev : platform device of VPU * @wq : wait queue to wait VPU message ack * @handler : ipi handler for each decoder */ struct vdec_vpu_inst { enum ipi_id id; void *vsi; int32_t failure; uint32_t inst_addr; unsigned int signaled; struct mtk_vcodec_ctx *ctx; struct platform_device *dev; wait_queue_head_t wq; ipi_handler_t handler; }; /** * vpu_dec_init - init decoder instance and allocate required resource in VPU. * * @vpu: instance for vdec_vpu_inst */ int vpu_dec_init(struct vdec_vpu_inst *vpu); /** * vpu_dec_start - start decoding, basically the function will be invoked once * every frame. * * @vpu : instance for vdec_vpu_inst * @data: meta data to pass bitstream info to VPU decoder * @len : meta data length */ int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len); /** * vpu_dec_end - end decoding, basically the function will be invoked once * when HW decoding done interrupt received successfully. The * decoder in VPU will continue to do reference frame management * and check if there is a new decoded frame available to display. * * @vpu : instance for vdec_vpu_inst */ int vpu_dec_end(struct vdec_vpu_inst *vpu); /** * vpu_dec_deinit - deinit decoder instance and resource freed in VPU. * * @vpu: instance for vdec_vpu_inst */ int vpu_dec_deinit(struct vdec_vpu_inst *vpu); /** * vpu_dec_reset - reset decoder, use for flush decoder when end of stream or * seek. Remainig non displayed frame will be pushed to display. * * @vpu: instance for vdec_vpu_inst */ int vpu_dec_reset(struct vdec_vpu_inst *vpu); /** * vpu_dec_ipi_handler - Handler for VPU ipi message. * * @data: ipi message * @len : length of ipi message * @priv: callback private data which is passed by decoder when register. */ void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv); #endif